Protein and free amino acids in a high lysine maize double mutant |
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| Authors: | P. Arruda W.J. da Silva J.P.F. Teixeira |
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| Affiliation: | 1. Departamento de Genética e Evolução, Universidade Estadual de Campinas, CP 1170 Campinas, Brazil;2. Seção de Fitoquimica Instituto Agronomic de Campinas, CP 28 Campinas, São Paulo, Brazil. |
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| Abstract: | A comparative study of free amino acids and protein fractions of normal with a double mutant (su1 o2) was made, during endosperm development in segregating ears of a maize synthetic. Zein content showed striking differences in the two genotypes, being 7.7 and 6 times greater in the normal endosperm at 24 and 47 days after pollination respectively. This observed decrease in zein synthesis, coded by sugary-1/opaque-2 genes, causes an accumulation of alanine, glutamic and aspartic acids, glutamine and asparagine in the high lysine endosperm mutant. |
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| Keywords: | Gramineae protein synthesis free amino acids high lysine endosperm mutants. |
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